Generator drive for railroad cars and the like



March 26, 1929. c, w, DAKE 1,706,562

' GENERATOR DRIVE FOR RAILROAD CARS AND THE LIKE Filed June 16, 1926 5 Sheets-Sheet 1 N N w wwz/ze MM- 4J2 j mama s.

March 26, 1929.

c, w. DA E GENERATOR DRIVE FOR RAILROAD CARS AND THE LIKE Filed June 16, 1926 5 Sheets-Sheet 2 ATTORNEY-5.

March 26, 1929. c. w. DAKE GENERATOR DRIVE FOR RAILROAD CARS AND THE LIKE Filed June 1.6, 1926 5 Sheets-Sheet 5 C. W. DAKE GENERATQR DRIVE FOR RAILROAD CARS AND THE LIKE March 26, 1929.

Fiied June 16, 1926 v 5 Sheets-Sheet 4 BY i I ATTORNEYQSF? INVENTOR @arZe/ March 26, 1929. c, w, DAKE 1,706,562

GENERATOR DRIVE FOR RAILROAD CARS AND THE LIKE Filed June 16, 1926 5 Sheets-Sheet 5 5 II II,

INVENTOR ATTORNEYS Patented Mar 26, 19 29.

UNITED s u l'rss PATENT} OFFICE.

CHARLES w. DARE,- or onrcaea'imamors, ASSIGNOR TO THE rrnnnarrounn comi rain, or CHICAGO, rumors, A CORPORATION or new JERSEY.

GENERATOR nRIvR FOR RAILROAD cans m TfiIElLIKE.

Application filed June 16,

My invention relates to improvements in a generator for moving vehicles andparticularly to a generator drive for railroad cars adapted to bedriven in respo se to the rotagltion of'one of the vehicle w eels or axles. One object of 'my invention is to provide means for maintaining nerally constant tension upon the driving lt. Another object of my invention is to provide means for preventing or reducing surges and strains upon the beltin-response to sudden changes in the velocity of the vehicle. Other objects will appear from time to time throughout the a specification and claims p 15 My invention is illustrated more'or less. diagrammatically in the accompanying "drawings, wherein- Figure 1 is a plan view; Figure 2 Figure 1; 1 v

Figure 3 is a view similar to Figure 2 with the tension onthe belt loosened;

Figure 4 is a section on an enlarged scale on the line Ir- 4 of Figure 2;

Figure 5 is a bottom view of the shown in section in Figure 4; 1

Figure 6 is a side elevation of'the same P Figure 7 is a section on the line 77 of Figure 1;. v v Figure 8 is a seetion -onthe line 88 of Figure 7, 1 I

Like parts are indicated by like characters throughout the specification and drawings.

It will be realizedthat the vehicle forms no part of the present invention per so am its details are so far'as possible omitted.- A indicates a portion of the car frame, upon which is mounted a bracket A -to which is secured any suitable motor generator A having the shaft'A and the pulley A thereon. A indicates the driving belt.

In order 'to' ermit the easy disconnection I of the pulley 1? from driving relation with the enerator shaft A and in order to-permit testing of the generator by its operation as a motor, I provide the following connection between the two. The shaft A is provided with a= terminal reduced portion A; keyed I parts vided with a conic clutch member A" adapted lsta section on the line of to which is a cone member A". Surrounding .1926. Serial No. 116,337. l

.to be opposed to the cone A and an inwardly A cylindrical portion A adapted to engage and surround the rollers A". When the-lock nut A is normally ti htened the opposed conic members A and 12 are in .locklng engagement and relative rotation of the ulley A 'and shaft A is' prevcnted. W en, however, the lock nut A? is slacked off, the said locking engagement is terminated and v the 'pulley rotates freely-about the. shaft and 06 about the roller bearings A. f

B generally indicates the car trlick frame in which is mounted the axle B carrying the ear wheels B Clamped about the axle is suitable drive pulley B herein shown as con- 70.- sisting-of the segments B secured together for exampleby the bolts 13. The pulley B is herein shown as having a enerally cylindrical outer surface across w ich passes the lower'ply of the belt A". v

' Mounted on the car truck frame B is any suitable support G withthe lower prolongation C Pivotedto its upper end are the bracket arms C the lower ends of which are secured tothebearing sleeve C Positioned 80. in each end of the sleeve, for example,-v by the screw threaded closure members C C are the roller bearings C C, wherein rotates the shaft C 1" The closure member 0* and the roller member C engage the reduced end C of the l housingC whereas the closure member C sand roller member 0' are mounted in the memberC inserted in the opposite end of the housing'C" and secured in position, for examp1e,'by the screwsC. Secured to thetaperedan'd reduced outer end of the shaft C is any suitable pulley hub D locked in position thereon for example by the nut D. D is the pulley member herein shown as integral with the hub D and'par- 95. tially surroundin the end of the housing C Secured to the ottom of the housing C is the guiding pin E, one end ;of which passes. throughthe aperture E in the downwardly I de nding member-C ,Eis a spiral spring 'coiled about the outer end thereof and adapted to be compressed between the member C and any suitable lock or ad'ustment nuts E p lilsitioned at the. outer en 5 of the pin E.

' as follows 1 1;:

1 0, driving pu y a thedrivenpulley by In railroadout' departing the spirit of my invention. I wish, therefore,;that my drawings be taken as in a :broad'sense illustrative ordiagrammatm'ratlier tlia'nas limited to the specific showing-'shownherein. w p v The use and operation-of my lnventionare surrounding both, lfprefersto employ a belt surrounding the driven pulley and an idler or and provide the pin tension pulley. I thereforemount the idler inge or, pivoted bracket frame,'a.drivin pulle carriedlg' car axles, an'i er'pufle'y carri pulley D upon a 11 g E and thelspringll exert tension upon said adapted normally to bracket and upon the belt A; I so arrange.

the rotating members and the peripheries of the driven and the tension pulley that when the three are in normal position the belt-is partially looped by the driving pulley as shown in Figure 2 and is driven therefrom.

However, the relation ofthe parts is such that in case of sudden stoppingor starting orsudden changes ofispeed the strain upon the belt is in great part eliminated by provision of the. yielding release of the. tension pulley. The driving engagement between the pulley B and the belt is suflicient for normal driving purposes but is not enough, as to make it possible in normal use for sudden changes in rate ofrotation of the drivin pulley to exert a de structive tension upon t e belt. 1

It is important, in testing the generator, to

be able to break the driving connection and to drive the generator asa motor. For this reason I provide for the generator or driven pulthe roller bearings A.

frame, a drivin pulle ley A", a clutchconnection illustrated in de-- tail in Figures 7 and 8. The opposed conic clutch members A and A are normally held in engagement by the drawing up of the lock nut A. When the lock nut ispartiallyre leased the clutch connection is broken and the pulley rotates in relation tothe shaft A about I claim: p

1. The combination with a railroad car of a pulley mounted on the car carried by one of the car axles, and an idler pulley carried by the car truck, a belt traveling over the generator and idler pulley" and en aging the upper side ofthedriving pulley on Y 1 2. The combl'nationwlth a. railroad car of a generator andpulley mounted on the car carried by'one of the car axles, an id er pu ley carried by the car truck, a belt traveling over the generator and idler pulley andengaging the up or side-of the driving pulley only, and yie ing means mounted on the car truck and associated with the idler pulley for exerting a tension on the belt to hold it in conact with the driving pulley.

' on the belt.

"The combination with a railroad or a generator-and pulley. mounted on the car frame, a .drivin pulle car axles, an i or pull truck, a belt traveling over the generator and idler pulley and. engaging the upper side of the dnving pulley only, and a;

mounted and yielding means for rotating the link tending. to draw the idler pulley away from. the onthe belt.

; 4 Thecombination with a raili'oad car of a.-

generator and pulley mounted onthe car generatorjpulljey' to exert a tension et on the car 'ored at one end on thelink carriedb oneof the-j ey carrie .by the car 9..

Pp 'f jidler pulley comprising a link pivoted on the. car frame upon which the'gpulley is rotatably 0f l by the car ber adapted to dravp it and the link away from I the generator pulley, V

'5. The oombinatlon with a railroad. car of b a generator and pulleymounted onthe car frame, a driving pulley carried'b one of the car. axles, an. idler pulley carrie by the-car truck, a'belt trayeling over the generator and idler pulley and engaging the upper side of.

the driving pulley only, asu port forftlie' idler pulley comprising a brac at onthe car truck, a link pivoted on thebracket-and carrying the idler a le in the'brac et anchored at one end on the link and a spring associated with the tension member adapted to draw it from the generator pulley, the bracket being tension member from'thetruck.

andthe link away I pulley, a tension member slidremovable as aunit with the link pulley and I p i 6. The combination with a railroadcar of a generator and pulley mounted on the car frame; a'driving pulley mounted on one- 0f the car axles, an'ldler pulle car truck, the supports generated pulleys being located entirely on one side of the working face thereof, and an endless belt traveling overthegenerator and supported on the or the idler and idler pulleys and engaging. the upper. side of the driving pulley only.

7. The combination with a' railroad earof a generator and pulley mounted on the car frame, a driving pulley v the car axles, ,an idler pulley sup car truck, the-sup rts' forthe 1 orator pulleys being. located entirely sideof the working face. thereof, an endless er and genmg means theidler pulley to exert; tension on one belt' traveling over the generato idler,

per side oftflse mounted on one/of gprted on the which the arms are pivoted, and yielding- 8. The combination with a railroad car of a enerator and pulley mounted on the car rame, a drivin pulley mounted on one of the car axles, an i ler pulley supported on the car truck, the supports for the idler and generator pulleys being located entirely on one side of the working face thereof, an endless means engaging the barrel adapted to rotate it about the pivot point.

10. In a railroad car lighting generator drive, an idler pulley and sup ort thereforv comprising a barrel, bearingsln either end thereof, a shaft rotatable in said bearings and projecting at one end beyond the end of the barrel to carry the pulley, the working face of the pulley overhanging .the bearing nearest the projecting end of the shaft, and means associated with the barrel for yield- ,{ggly displacing it to exert a tension on the 11. In a railroad car lighting generator drive, an idler pulley and sup rt therefor comprising a barrel, bearings in either 'end thereof, a shaft rotatable in said bearings and projecting at one end beyond the end of the barrel to carry the pulley, the working face of the pulley overhanging the bearing nearest the projecting end of the shaft, arms projecting radially from the barrel, a bracket on which the arms are pivoted, a tension pin slidable in the bracket pivotall engaging the barrel and a spring associated with the pin and bracket for yieldingly drawing the barrel toward the bracket. I

12. In a railroad car lighting generator drive, an idler pulley andsupport therefor comprising a barrel, a shaft rotatable therein 1 be threaded in the sleeve, the end of the shaft and projecting at one end beyond the end thereof to carry the pulley, the working face of the pulley overhanging the end of the barrel, arms projecting radially from the barrel, a bracket upon which the arms are pivoted and yielding means for rotating the arms and barrel upon the bracket.

13. A bearing support for railroad car lighting generator drive pulleys comprising a barrel closed at both ends toform an 011 reservoir, bearings at both ends of the barrel, a shaft mounted for rotationin said bear- I ings, one end of the shaft extending outwardly through the closed end of the barrel, a pulley thereon overhanging the end of the barrel,

and a propeller disc rotating with the shaft inside the oil reservoir, the interior walls of the reservoir increasing in diameter toward both ends of the propeller disc to guide lubricant discharged by the disc toward the two bearings.

14. In combination with an idler pulley for railroad car generator drives and the like,

a supporting member, a tubular barrel, a'plurality of Ion 'tudinally spaced arms pro ecting radially t erefrom and pivoted to the supporting member, antifriction bearings located at either end of the cylinder barrel, a pulley shaft carried thereby projecting outwardly through the one end of the barrel, a pulley mounted on the shaft surrounding the end of the barrel.

15. In combination with an idler pulle for railroad car generator drives and the li e, a supporting member, a tubular barrel. a plurality of Ion 'tudinally spaced arms projecting radia y therefrom and pivoted to the supporting member, anti-friction bearings located at and pivoted to the supporting member, anti-friction bearings located at either end of the cylinder barrel, a pulley shaft carried thereby rojecting outwardly through the one end. 0 the barrel, a pulley mounted on theshaft surrounding the end of the barrel, the center of the pulley face being substantially in line with one of the anti-friction bearings.

16. A pulley support for railroad generator drives and the li a comprising a cylindrical barrel, an interiorly projecting shoulder at one end thereof, an anti-friction bearing contained therein and resting against the shoulder, means for seating the bearin and holding it in position thereon, a sha mounted for rotation in the bearing, a sleeve removably mounted in the other end of the barrel,

an anti-friction bearing slidable in said sleeve, 0. cover plate adapted to engage the outer end of the anti-friction bearing and to engaging the anti-friction bearing, the other en of the shaft projecting outwardly beyond the barrel an a pulley mounted there on and surrounding the end of the barrel.

Signed at Chicago, county of Cook and State of Illinois, this 9th day of June, 1926.

. CHARLES W. DAKE. 

